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WeedWise Program A conservation program of the Clackamas County SWCD

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Hairy cat’s ear

Joseph M. DiTomaso, University of California – Davis, Bugwood.org

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Latest

Think twice before killing those thistles: Thistle Identification March 21, 2017
Staff Spotlight: Sarah Hamilton, WeedWise Specialist & CWMA Coordinator April 6, 2017
Himalayan Blackberry BMP Now Available January 8, 2015
Tansy Ragwort Poisons Livestock and Neighborly Relationships! July 27, 2016
Blessed Milkthistle invading pasture lands. June 3, 2016

June’s Weed of the Month: Policeman’s Helmet June 1, 2023
10 Ways to Celebrate Oregon Invasive Weed Awareness Week! May 12, 2023
Staff Spotlight: Samuel Leininger, WeedWise Manager May 4, 2023
May’s Weed of the Month: Orange Hawkweed May 1, 2023
April’s Weed of the Month: Garlic Mustard April 3, 2023

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20 Questions Alliaria petiolata Best Management Practices BMP Christmas cinnabar moth Cirsium arvense Class A Class B Columbia Gorge CWMA CRISP Cytisus scoparius English holly English ivy Fallopia japonica Fallopia sachalinensis Fallopia ×bohemica forest understory Garlic mustard Hedera canariensis Hedera helix Hedera hibernica Hieracium aurantiacum Ilex aquifolium invasive IPM Irish ivy noxious Orange hawkweed Polygonum cuspidatum Polygonum sachalinensis Polygonum x bohemicum priority Ragwort Scotch broom slider Specialist staff Staff Spotlight Tansy thistle Weed-of-the-Month weed profile Weeds weedwise

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WeedWise Program